CODEWITHSUNDEEP
shell
Rupesh Madhav
Rupesh Madhav

Reputation: 47

Remove whitespaces before a character starts and before equal to(=) sign and using shell

I have one file(file1.txt)

Rahul=rahul

Vimal=vimal

   Vishal =vishal

   Rupesh =rupesh

   Aromal =aromal

   Anugrah =anugrah

My output file should be

Rahul=rahul

Vimal=vimal

Vishal=vishal

Rupesh=rupesh

Aromal=aromal

Anugrah=anugrah

I tried with following commands. Still not getting output as I needed.

sed 's/  */ /g' < file1.txt

sed 's/ \{1,\}/ /g' < file1.txt

sed 's/ \+ / /g' < file1.txt

sed -e "s/[[:space:]]\+/ /g" < file1.txt

Upvotes: 1

Views: 28

Answers (2)

Tarique
Tarique

Reputation: 1461

You can use shell tr command if not required to use sed:

tr -d ' ' < file1.txt

Hope this helps

Upvotes: 0

anubhava
anubhava

Reputation: 785761

You may use this sed with an alternation in your regex:

sed -E 's/^[[:blank:]]+|[[:blank:]]+(=)/\1/g' file

\1 is back-reference for capture group #1 i.e. = in 2nd part of alternation. 

Rahul=rahul

Vimal=vimal

Vishal=vishal

Rupesh=rupesh

Aromal=aromal

Anugrah=anugrah

Upvotes: 1

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